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Invented the compound microscope(two lenses within a tube) -
Saw the 1st cell while looking at a cork tree using a microscope. Gave "cells" their names. -
Used rotten meat to discover cells do NOT spontaneously pop up! Cells come from cells. -
1st scientist to observe one celled organisms(such as bacteria) using pod water & teeth scrapings. -
Discovered that plant tissues are made of cells. All plants are made of plant cells! -
Discovered that animal tissues are made of cells. All animal tissues are made of cells. All animals are made of animal cells. -
Observed cells dividing, which led to the 3rd part of the cell theory. "Cells come from pre-existing cells." -
Made the 1st model of DNA, providing genes are hereditary.